<template>
    <div>
        <h1>404 Error</h1>
        <p class="zoom-area"><b>CSS</b> animations to make a cool 404 page. </p>
        <section class="error-container">
            <span class="four"><span class="screen-reader-text">4</span></span>
            <span class="zero"><span class="screen-reader-text">0</span></span>
            <span class="four"><span class="screen-reader-text">4</span></span>
        </section>
        <div class="link-container">
            <a href="/" class="more-link">Visit the homepage</a>
        </div>
    </div>
</template>

<script setup>
</script>

<style lang="scss">
@import url('https://fonts.googleapis.com/css?family=Montserrat:400,600,700');
@import url('https://fonts.googleapis.com/css?family=Catamaran:400,800');

.error-container {
    text-align: center;
    font-size: 106px;
    font-family: 'Catamaran', sans-serif;
    font-weight: 800;
    margin: 70px 15px;

    >span {
        display: inline-block;
        position: relative;

        &.four {
            width: 136px;
            height: 43px;
            border-radius: 999px;
            background: linear-gradient(140deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 43%, transparent 44%, transparent 100%),
                linear-gradient(105deg, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.06) 41%, rgba(0, 0, 0, 0.07) 76%, transparent 77%, transparent 100%),
                linear-gradient(to right, #d89ca4, #e27b7e);

            &:before,
            &:after {
                content: '';
                display: block;
                position: absolute;
                border-radius: 999px;
            }

            &:before {
                width: 43px;
                height: 156px;
                left: 60px;
                bottom: -43px;
                background: linear-gradient(128deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 40%, transparent 41%, transparent 100%),
                    linear-gradient(116deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 50%, transparent 51%, transparent 100%),
                    linear-gradient(to top, #99749D, #B895AB, #CC9AA6, #D7969E, #E0787F);
            }

            &:after {
                width: 137px;
                height: 43px;
                transform: rotate(-49.5deg);
                left: -18px;
                bottom: 36px;
                background: linear-gradient(to right, #99749D, #B895AB, #CC9AA6, #D7969E, #E0787F);
            }
        }

        &.zero {
            vertical-align: text-top;
            width: 156px;
            height: 156px;
            border-radius: 999px;
            background: linear-gradient(-45deg, transparent 0%, rgba(0, 0, 0, 0.06) 50%, transparent 51%, transparent 100%),
                linear-gradient(to top right, #99749D, #99749D, #B895AB, #CC9AA6, #D7969E, #ED8687, #ED8687);
            overflow: hidden;
            animation: bgshadow 5s infinite;

            &:before {
                content: '';
                display: block;
                position: absolute;
                transform: rotate(45deg);
                width: 90px;
                height: 90px;
                background-color: transparent;
                left: 0px;
                bottom: 0px;
                background: linear-gradient(95deg, transparent 0%, transparent 8%, rgba(0, 0, 0, 0.07) 9%, transparent 50%, transparent 100%),
                    linear-gradient(85deg, transparent 0%, transparent 19%, rgba(0, 0, 0, 0.05) 20%, rgba(0, 0, 0, 0.07) 91%, transparent 92%, transparent 100%);
            }

            &:after {
                content: '';
                display: block;
                position: absolute;
                border-radius: 999px;
                width: 70px;
                height: 70px;
                left: 43px;
                bottom: 43px;
                background: #FDFAF5;
                box-shadow: -2px 2px 2px 0px rgba(0, 0, 0, 0.1);
            }
        }
    }
}

.screen-reader-text {
    position: absolute;
    top: -9999em;
    left: -9999em;
}

@keyframes bgshadow {
    0% {
        box-shadow: inset -160px 160px 0px 5px rgba(0, 0, 0, 0.4);
    }

    45% {
        box-shadow: inset 0px 0px 0px 0px rgba(0, 0, 0, 0.1);
    }

    55% {
        box-shadow: inset 0px 0px 0px 0px rgba(0, 0, 0, 0.1);
    }

    100% {
        box-shadow: inset 160px -160px 0px 5px rgba(0, 0, 0, 0.4);
    }
}

body {
    background-color: #FDFAF5;
    margin-bottom: 50px;
}

html,
button,
input,
select,
textarea {
    font-family: 'Montserrat', Helvetica, sans-serif;
    color: #bbb;
    overflow: hidden; /* 隐藏滚动条 */
    height: 100%; /* 确保高度为100% */
}

h1 {
    text-align: center;
    margin: 30px 15px;
}

.zoom-area {
    max-width: 490px;
    margin: 30px auto 30px;
    font-size: 19px;
    text-align: center;
}

.link-container {
    text-align: center;
}

a.more-link {
    text-transform: uppercase;
    font-size: 13px;
    background-color: #de7e85;
    padding: 10px 15px;
    border-radius: 0;
    color: #fff;
    display: inline-block;
    margin-right: 5px;
    margin-bottom: 5px;
    line-height: 1.5;
    text-decoration: none;
    margin-top: 50px;
    letter-spacing: 1px;
}
</style>
